It's that time again! The Lightning Round bell has rung, and Jim Cramer gives his take on a few favorite audience stocks:

American Movil SAB: "Too hard, no. If you want telco, just go with Verizon and get that yield. That's too hard with American Movil, you don't know what's going to happen down there."

Bank of America: "I am concerned about the bank stress test, but this is the fourth largest position for Warren Buffett. He makes note of it and he says he likes it. That said, I like his other big bank. I'm a Wells Fargo fan. That's what my charitable trust owns and I wish it were even bigger."

Micron Technology: "I think Micron's having a decent quarter, but a lot of people think it's too tied to PCs. Anything PC after Hewlett-Packard worries me. I'm technically worried about Microsoft more than I am about Micron. So I am in the don't buy category. You can hold it, but I'm a little nervous about it.

Mattress Firm Holdings Corp: "With a 52-week high today, that's more of a betting company than I like. And don't forget that when you want to do betting, you go with Home Depot or Lowe's."

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Q2 Holdings: "That came public at a particularly good time that a lot of others came public. I need to do more work on it because it's cloud based, and I'm not sure."

Merrimack Pharmaceuticals: "We like them! That was one of our spec pharma picks. We still continue to like it. I think it's in real good shape. You have a good one in Merrimack, we still like it."

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